Sometimes you need to have 2 antennas on top of a house, you can pick your reasons why.
Sometimes you may be using Ubiquiti Equipment with your Mimosa equipment.
Sometimes you just happen to have a 1A 24V POE injector…
On those occasions, I can verify that you can power a C5c off of the secondary port of an NanoStation M5. (Presumably off of any of the Ubiquiti Products that have POE on their secondary ports. The new NanoBeam 5AC for example.)
You defiantly need the 1A of power, I tried it with the standard .5 amp POE injector. But everything came online and if you were to use an Ubiquiti AC gear you would not be stuck at 100 M Ethernet.